This family consists of the photosystem I reaction centre subunit IX or PsaJ from various organisms including Synechocystis sp. (strain PCC 6803), Pinus thunbergii (Green pine) and Zea mays (Maize).
PsaJ is a small 4.4kDa, chloroplast encoded, hydrophobic subunit of the photosystem I reaction complex whose function is not yet fully understood [10220342]. PsaJ can be cross-linked to PsaF and has a single predicted transmembrane domain. It has a proposed role in maintaing PsaF in the correct orientation to allow for fast electron transfer from soluble donor proteins to P700+ [10220342].

Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry
out SCOP domain assignments to all genomes at the superfamily level.

Alignments of sequences to 1 models
in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical
are shown by default, but any other sequence(s) may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own sequences.

Browse and view proteins in genomes which have
different domain combinations including a Subunit IX of photosystem I reaction centre, PsaJ domain.

Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.

There are 1 hidden Markov models representing the Subunit IX of photosystem I reaction centre, PsaJ superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.